1. Adams, E. W., ‘The Logic of Conditionals’, Inquiry 8 (1965) 166–197.
2. Adams, E. W., ‘Probability and the Logic of Conditionals’, in P. Suppes and J. Hintikka (eds.), Aspects of Inductive Logic, North-Holland, 1968, pp. 265–316.
3. Adams, E. W., The Logic of Conditionals: An Application of Probability to Deductive Logic, D. Reidel, Dordrecht, 1975.
4. Ayers, M. R., ‘Counterfactuals and Subjunctive Conditionals’, Mind (1965) 347–364.
5. Dummett, M., ‘Truth’, reprinted in P. Strawson (ed.), Philosophical Logic, Oxford, 1968.